Pith Number

pith:OW7UR7Z6

pith:2021:OW7UR7Z6OOKCF6NBZPJOGEL3VE

not attested not anchored not stored refs pending

Removing Atmospheric Fringes from Zwicky Transient Facility i-Band Images using Principal Component Analysis

Ashish A. Mahabal, Danny Goldstein, Dmitry A. Duev, Frank J. Masci, Igor Andreoni, Michael S. Medford, Michael W. Coughlin, Peter Nugent, Reed L. Riddle, Ron Beck

arxiv:2102.10738 v2 · 2021-02-22 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OW7UR7Z6OOKCF6NBZPJOGEL3VE}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T03:49:59.387745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75bf48ff3e739422f9a1cbd2e3117ba924b5a7df17f768facd547140cac5a1ad

Aliases

arxiv: 2102.10738 · arxiv_version: 2102.10738v2 · doi: 10.48550/arxiv.2102.10738 · pith_short_12: OW7UR7Z6OOKC · pith_short_16: OW7UR7Z6OOKCF6NB · pith_short_8: OW7UR7Z6

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OW7UR7Z6OOKCF6NBZPJOGEL3VE \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 75bf48ff3e739422f9a1cbd2e3117ba924b5a7df17f768facd547140cac5a1ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "852297c6bb4e44539b1142858fd4130136e13c94c9cbaa45f51108dcc5afdda8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-02-22T02:26:34Z",
    "title_canon_sha256": "2ee77cef8884bcc3b9d882fe46b8a64d4af0c709cc058fe4201c78c886775fd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.10738",
    "kind": "arxiv",
    "version": 2
  }
}